The small box disappears completely under the side cover and is not visible from the outside. The large version offers much more space, but also looks good to a third of the bottom out of the sidepanel.
The boxes are available in powder coated steel or in bare stainless steel.
For both boxes a possibly existing battery or a rectifier for the turn signals must be stowed behind or inside the box.
Otherwise the box can be screwed without any problems to existing mounting points of the chassis without drilling or welding.
It is installed instead of the spare wheel